mirror of
https://gitlab.alpinelinux.org/alpine/abuild.git
synced 2024-12-22 15:02:59 +00:00
89 lines
1.7 KiB
Bash
89 lines
1.7 KiB
Bash
#!/bin/sh
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msg() {
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echo "==>" $@
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}
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die() {
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echo $@
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exit 1
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}
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unapk() {
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local dest="$1"
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shift
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while [ $# -gt 0 ]; do
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tar -C "$dest" -zxf "$1"
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shift
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done
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rm -f "$dest/.PKGINFO"
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}
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APKS=../aports/core/*/
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image=$PWD/image
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dest=$PWD/test.gz
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init=init
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kernel=$1
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# if no kernel specified, then guess...
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if [ -z "$kernel" ]; then
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kernel=$(ls /lib/modules 2>/dev/null | tail -n 1)
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fi
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if [ ! -d /lib/modules/$kernel ]; then
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die "modules dir /lib/modules/$kernel was not found"
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fi
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msg "mkinitram Using kernel $kernel"
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# create empty image dir
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rm -rf "$image"
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mkdir -p "$image/dev" "$image/etc/rcS.d"
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# unpack busybox and deps
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unapk $image $APKS/uclibc-[0-9]*.apk \
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$APKS/busybox-[0-9]*.apk \
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$APKS/alpine-baselayout-[0-9]*.apk \
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$APKS/apk-tools-[0-9]*.apk
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ln -sf /bin/busybox $image/init
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# create misc devs and enable boot scripts
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mknod $image/dev/null c 2 2
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ln -s ../init.d/mdev $image/etc/rcS.d/S10mdev
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ln -s ../init.d/hwdrivers $image/etc/rcS.d/S30hwdrivers
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ln -s ../init.d/modutils $image/etc/rcS.d/S40modutils
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ln -s ../init.d/modloop $image/etc/rcS.d/S50modloop
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ln -s ../init.d/hwdrivers $image/etc/rcS.d/S60hwdrivers
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mkdir $image/.modloop
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# load those extra drivers
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for i in ide-cd usb-storage ide-disk loop; do
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echo $i >> $image/etc/modules
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done
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# copy kernel modules
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kmods=$image/lib/modules/$kernel
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mkdir -p $kmods/kernel/drivers $kmods/kernel/fs
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for i in acpi ata block ide scsi cdrom usb message hid; do
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cp -LpR /lib/modules/$kernel/kernel/drivers/$i $kmods/kernel/drivers/
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done
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for i in isofs vfat nls ext2 cramfs '*.ko'; do
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cp -LpR /lib/modules/$kernel/kernel/fs/$i $kmods/kernel/fs/
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done
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cp -LpR /lib/modules/$kernel/kernel/lib $kmods/kernel/
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depmod $kernel -b $image
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# generate the image
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cd $image
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find . | cpio -o -H newc | gzip -9 > $dest
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